today. >>> good morning. i'm chris jansing. this morning we remember nelson mandela. in life he united south africa and the world and his legacy as a fighter for freedom will continue to resonate well after his death. icon, legend, hero. none of those words seem quite big enough to describe a man who changed the world. ♪ and yet in the streets of johannesburg, the crowds are celebratory. south africa planning ten days of mourning. mandela's body will lie in state with leaders from all over the world expected to pay respects. here in the united states, flags are flying at half staff. mandela had a huge impact on president obama inspiring him to public service. the two only met once in 2005 when president obama was then senator obama. >> i am one of the countless millions who drew inspiration from nelson mandela's life. my very first political action, the first thing i ever did that involved an issue or policy or politics was a protest against apartheid. >> mandela spent 27 years behind bars for treason, for backing an anti-apartheid charter. he was finally released february 11, 1990.